CVE-2026-0438
A System Management Mode (SMM) handler could perform a callout to code located in non-SMM/untrusted memory. A highly privileged attacker could, with active user interaction and under high complexity and present preconditions, trigger execution of attacker-controlled code in SMM, potentially compromising the system’s confidentiality, integrity, and availability.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.4
- CVSS vector
- CVSS:4.0/AV:P/AC:H/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- EPSS probability
- 0.14%
- CWE
- CWE-1072
- Published
- 2026-05-15
- Last modified
- 2026-05-19
Affected products
- AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7045 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 7000 Series Desktop Processors
- AMD AMD Ryzen™ 9000HX Series Processors
- AMD AMD Ryzen™ AI 300 Series Processors
- AMD AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors
- AMD AMD Ryzen™ Threadripper™ PRO 7000 WX-Series Processors
- AMD AMD Ryzen™ 7000 Series Desktop Processors